The world's top ten biggest economies ________(Change) since 2002.
The world's top ten biggest economies have changed since 2002.
The world population______(jump) to seven million people.
The world population has jumped to seven million people.
The economy of China _____ (Grow) for a number of years.
The economy of China has been growing for a number of years.
Some of the traditionally strong economies ______ (shrink) recently.
Some of the traditionally strong economies have been shrinking recently.
_______(funny) thing happened to me and my friend on a recent trip to Germany.
The funniest thing happened to me and my friend on a recent trip to Germany.
What is _____(good) film you have ever seen?
What is the best film you have ever seen?
Is it ____ (easy) to learn a musical instrument or learn a new language?
Is it easier to learn a musical instrument or learn a new language?
What is ______(expensive) thing you have ever bought?
What is the most expensive thing you have ever bought?
I'm trying to________ caffeine.
I'm trying to cut down on caffeine.
My head_____
My head aches.
I ______________by running twice a week.
I keep in shape by running twice a week.
The triathlon is a great test of _________.
The triathlon is a great test of stamina.
